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Finding the Fourth Proportional to 160.11, 240.44 and 140.94

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Solution

The fourth proportional to 160.11, 240.44 and 140.94 is: 211.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.11 : 240.44 = 140.94 : x
  2. Step 2: Convert to fraction form
    160.11/240.44 = 140.94/x
  3. Step 3: Cross multiply
    160.11x = 240.44 × 140.94
  4. Step 4: Simplify right side
    160.11x = 33,886.91
  5. Step 5: Solve for x
    x = 33,886.91/160.11
  6. Step 6: Final answer
    x = 211.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.